Automatic hose and tire connector.



E. J. ROHRBAGHER. AUTOMATIC HOSE AND TIRE CONNECTOR.

APPLICATION FILED OUT. 25,,1911.

Patented Aug. 6, 1912.

upon the line 33 EDWARD J; ROHRBACHER, or PORTLAND, OREGON E MORTIMER, F PORTLAND, OREGON.

AUTOMATIC HOSE AND TIRE CONNECTOR.

To all whom it may concern:

Be it known that I, EDWARD J. Ronnim'unn, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented a new and useful Automatic Hose and Tire Connector, of which the following is a specification.

The device forming the subject-matter of this application is adapted to be employed for establishing a communication between a source of pneumatic pressure, and a Wheel tire or like structure which is to be blown up.

The invention aims to provide a casing of novel and improved form, to provide a valve adapted to cooperate with the casing, in cci'itrolling the flow of air through the casing, to provide novel means for controlling the action of the valve, and to provide a valve which will be operated upon, in a novel manner, by the structure which is to be inflated.

\Vith the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the'scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings,Figure 1 shows the invention in longitudinal section; Fig. 2 is a transverse section upon the line 2-2 of Fig. 1; Fig. 3 is a transverse section of Fig. 1; and Fig. 4 is a perspective of the valve.

In carrying out the invention there is provided a casing 1, supplied at one end with an inlet chamber 2, and at the other end with an'outlet chamber 3. An intermediate bridge 7, constituting an integral part of the casing 1, serves to separate the inlet chamber 2 fromthe outlet chamber 3. Between the chambers 2 and 3 there is a reduced passage 4. An inlet tube 5 enters one side of the casing 1, and communicates with the inlet chamber 2, the bore .of the inlet tube 5 being denoted by'the numeral 6. The inlet tube 5 is equipped with outstanding ribs 8, adapted to engage and to retain the flexible tube whereby pneumatic pressure is supplied to the chamber 2.

Mounted upon one end of-the casing 1 Specification of Letters Patent. Application filed October 25, 1911.

reduced finger 26,

boss 28.

Patented Aug. 6, 1912. Serial No. 656,610.

is a cap, denoted generally by the numeral 9, the cap 9 having an axial opening 10, flaring outwardly, the opening 10 being alined with the passage 4 in the bridge 7. The cap 9 includes a flange 11, surrounding the casing 1, the casing being threaded, exteriorly, as shown at 12, to engage with the flange ll of the cap 9, Interposed between the cap 9 and the adjacent end face of the casing 1, is a resilient gasket 14, comprising a flange l5 and a tapered, conical neck 16, the bore 17 of the neckl6 being alined with the opening 10 in the cap 9, and with the passage 4 in the bridge 7 of the casing 1. To the opposite end of the casing 1, a cap 18 is applied, the cap 18 including a body 19, overlapping the end. of the casing 1, there being a neck 20 protruding from the body 19, the casing 1 being internally threaded, as shown at 21, to engage with the neck 20 of the cap 18. The inner end of the neck 20 is equipped with a projecting boss 22.

he invention further includes a valve, denoted generally by the numeral 23, the valve 23 comprising a stem 24, adapted to fit closely, yet slidably, in the passage 4 in the bridge 7. The valve stem 24 terminates in a flat, reduced end 25, located within the outlet chamber 3, between the bridge 7 and the inner end of the resilient gasket 14. Upon the extremity of this flattened, reduced portion 25 of the stem 24 there is a adapted to protrude into the bore 17 of the gasket 14. The stem 24 carries, within the inlet chamber 2, a transverse head 27, equipped with a projecting A helical compression spring 29 is provided, one end of the spring 29 being engaged by the boss 22, and the otherend of the compression spring being engaged by the boss 28. The head 27 of the valve is recessed in its under face, to define a marginal flange 30, within which is inclosed a resilient packing disk 31, adapted to bear against an annular rib 32, projecting from one end of the bridge 7. In the outer face of the stem 24 of the valve there are longitudinally extended grooves 33, extended the full length of the passage 4, the grooves 33 opening at one end into the chamber 3, and at the other end opening beneath the packinlg disk 31, and Within the contour of the ri 32.

In practical operation, air from a suitable source of supply, will enter the tube 5,

through its bore 6, and pass thence into the inlet chamber 2. The pressure of the air within the chamber 2, to ether with the pressure of the spring 29 will serve to maintain the head 27 of the valve 23 seated, the resilient packing disk 31 being pressed against the rib 32. When the valve casing of a tire or the like. is inserted through the openings 10 and 17, the finger 26 will, in the first instance, engage the stem of the valve of the tire and open the valve of the tire. Subsequently, the casing which surrounds the valve of the tire, will come into contact with the extremity of the flattened end 25 of the stem 2a, sliding the stem and unseating the resilient disk 31 from the rib 32, whereupon the air will pass from the inlet chamber 2, through the grooves 33 in the stem 24:, into the outlet chamber 3, and thence through the openings 17 and 10 into the tire or other structure which is being inflated. Owing to the fact that the finger 26 protrudes into the gasket 14, the valve of the tire will be unseated, as soon as the stem of the valve of the tire is engaged by the extremity of the finger 26. Subsequently, when the casing of the valve of the tire comes into contact with the extremity of the fiat portion 25 of the stem 24, the stem will be lifted, in the manner hereinbefore set forth. Owing to the fact that the stem is flattened, and diminished in diameter, as shown at 25, between the bridge 7 and the inner end of the gasket 14, the passage of' air from the outlet chamber 3, through the openings 17 and 10, will be impeded to the smallest possible extent. As soon as the pressure against the stem 24 is relieved, the spring 29 and the air pressure upon top of the head 27 will effect an immediate seating of the head against the rib 32, and a consequent cutting oif of the pressure suppl any leakage of air being thus automatically prevented.

The device is so constructed that it may readily be taken apart, for the purpose of cleaning, and for the renewal of worn or broken parts.

' Having thus described the invention, what is claimed is 1. A device of the class described comprising a casing having an intermediate bridge defining an inlet compartment at one end of the casing, and an outlet compartment at the other end of the casing, there being an annular rib projecting from the bridge into the inlet compartment, "the bridge having a reduced passage forming a communication between the compartments and opening within the contour of the rib, the casing having a lateral 'inlet communicating with the inlet compartment; a cap attached to one end of the casing and having a boss protruding into the inlet compartment; a cap attached to the other end of the casing: a gasket bound between the last mentioned cap and the casing, there being alined openings in said cap and in the gasket; a valve including a stem fitting closely in the passage, the stem having a flattened portion located between the bridge and the gasket, there being upon one end of the flattened portion, protruding into the opening in the gasket; a head being carried by the stem, within the inlet compartment, the head being recessed; a resilient disk seated in the recess of the head and adapted to engage the rib, there being a. superficial, lon itudinal groove in the stem, extended the ength of the recess and terminated adjacent the head, the head having a-boss; and a compression spring engaged by the bosses,'to press the disk against the rib.

2. A device of the class described comprising a casing having an intermediate bridge defining an inlet compartment at one end of the casing and an outlet compartment at the other end of the casing, there being an annular rib projecting from the bridge into the inlet compartment, the bridge having a reduced passage forming a communication between the compartments and the opening within the contour of the rib, the casing having a lateral inlet communicating with the inlet compartment; a valve including a stem fitting c osely in the passage, the stem having a flattened portion locatedv within the outlet compartment, there being a reduced finger upon the end of the flattened portion, ried by the stem, within the inlet compartment; a resilient disk secured to the head and adapted to engage the rib; and resilient means for seatlng the valve, to hold the disk against the rib.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

EDWARD J. ROHRBACHER.

Witnesses:

H. H. NEWHALL, F. W. ALT, Jr.

a reduced finger a head being car- 

